He added; "There will most likely be more similar attacks against film companies, games companies and public authorities," he said.

Twitter has already closed two accounts linked to the Lizard Squad in the wake of the attack.

A previous attack over Tuesday and Wednesday also caused headaches for the company. A Telia spokesman told The Local at the time that the company had put "technical arrangements in place to ensure [an attack] won't happen again".

Lateon Thursday, a well known hacking collective called Lizard Squad claimed responsibility for the attacks. It is understood that Lizard Squad was targeting gaming company Electronic Arts, which uses Telia for net connection.

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The group has a long history of carrying out DDOS attacks, which entails a website being bombarded with communication requests so that the servers become overloaded and the site crashes.

The group has targeted XBox Live and the Playstation Network in the past, and even tweeted out a bomb threat to a plane carrying a Sony executive.

Over five million Swedes use Telia to provide their home phones, TV and mobile services. The company is part-owned by the Swedish state.